~Collator();
Collator(Collator const &) = delete;
Collator& operator=(Collator const&) = delete;
int compare(std::string const& utf8_a, std::string const& utf8_b) const;
~Collator();
Collator(Collator const &) = delete;
Collator& operator=(Collator const&) = delete;
int compare(std::string const& utf8_a, std::string const& utf8_b) const;